Two options here:
2 cups of grated vegan cheese to sprinkle over slice
or
1 cup of nutritional yeast flakes
I have used both as it depends on what I have in the fridge at the time

Preheat oven to 180oC & grease a glass baking dish. (Not too big)

Heat the 3 ½ cups of water to boil.
Add polenta, reduce heat & stir until thick. Remove from heat & set aside.

Heat some oil in a fry pan & sauté onion until tender. Then add garlic, cayenne pepper & spinach until wilted. Season with salt & pepper.

Spoon half the polenta into the baking tray & spread evenly. Cover with the curried tofu & the spinach mixture. Sprinkle with either vegan cheese or nutritional yeast flakes. Spoon on your last layer is polenta. Sprinkle with cheese or yeast flakes – if using yeast flakes. Drizzle a small amount of olive oil over it on the top layer.